Pipe-reamer.



P, NEBRUP.

PIPE KRAMER.

APPLIGATION FILED $319130, 1907.

Patented Dec. 27,1910.

; enrr PETER NEERUP, OF LOUISIANA, MISSOURI, ASSIG1\lOR TO RELIABLE TOOL & SPE CIALTY COMPANY, OF LOUISIANA, MI$SOURL A CORPQRATION OF 'MISSOI IBI.

. PIPE-KRAMER.

' Specification of Letters Patent. Patented Deb. 27, 1 910- Application 'filed September so, 1907. Serial No. 395,124.

To all whom it may concern:

Be 1t known that I, Pn'rnn banner, a citi- Zen of'thc United States. residing at Louisiana, in the countyof Pike and State of Missouri. have invented certain new and:

useful Improvementsin lipe-lieamers, of which the following is a specification.

My invention relates to -r.eamers adapted use of pipe-cutting tools or the like, andhas for one of its objects the production of provements 111 a pipe reamer which is selfcentering."

Another object of my invention is the production of a reamer-that may be used upon various sizes of pipes.

My invention also relates to the other imforth.

Referring to the accompanying drawings, Figure 1 is'a top plan viewofapipe reamer embodying my invention, the hand lever being removed. of the reamer-showing the same in position on a pipe. Figs. 3 and 4 illustrate two sizes of pipe collars used in connection with; the learner.

The present embodiment of my invention comprises a. frame 1 and a reamer 2. A bracket 3 forms the upper portion of said frame and consists of a'bearing collar 4 and two arms 5 extending from opposite sides of said collar. The said collar is provided with a finished bearing-opening (3v and a set screw 7. At the outer ends of the arms 5 are lugs 8 to which are rigidlysecured the upper ends of two guide rods 9. Said guide rods extend downward and may be ofany suitable length. A second bracket 10 having a bearing collar 11 and arms 12 extending therefrom in opposite directions, is adapted to be 'slidably adjusted upon the guide rods 9. To this end openings 13 in the arms 12 are alined with said rods and set screws 14 are arranged insaid arms to engage said. rods.

A pipe collarlf adapted to be inserted in the bearing collar llcomprises thesleeve: 16 having an annular groove 17 thereonandf" an upper end flange 1 8 ada )te'ol 'torestupon the upper face of the brac ct 1032K mmher of these pipe collars is providedwith the reamer, the bores of the variouscollars pipe reamers hereinafterset Fig. 2 is aside elevation 3 and 1) being arranged to fit various sizes of pipes.

reamer-Q is rotatably mounted Within the bearing collar 4; Annular. grooves20' and 21 are formed near the. lower and upper I ends, respectively, of'said shaft for, the reception of the inner end. of the set screw 7. Said screw when in engagement with said grooves, prevents the reamer fromidropping out of proper position inthe frame, but

dents 24 in its face adapted to seat the set screw 25 in said hand lever. If desired, a ratchet handle maybe. substituted for the reamer of medium taper but it is obvious that the pitch and number of cutting .edges may becvaried as-desired. I f In use, the lower bracket 10 is removed from the guide rods 9, a pipe collar of a bore' then placed in position over the end of the pipe to be reamed, said frame sliding down until the reamer and the pipe are in engageinent. If desired, the lower bracket- 10 may then be raised to the upper end of the pipe ter' centering of the reamer, which is then rotated until the' inner obstruction orbnr is removed, The shaft may be. slid 1 down in the collar 4, if desired, in reaming the larger sizes of pipe. It will be .noted that pipe collars 15 and the set. screw 7 prevent endwise movement of the shaft 19 without interfering with its rotation. The adjustability of the lower bracket -10 reamer 2sl1all be pro erly supported with reference to the pipe, t hus insuring stability of the, tool and accurate centering. With certain. sizes of frame and "manner, it is also 1 able pipe collars 15.

does not interfere with the rotation of said reamer. -A hand lever 22 isfarranged to; be mounted on the squared head 23 of the shaft '19Qsaid squared head having in permits of locating saidbracket so that the.

necess'aryflto remove the bracket 10'for the,

I do not limit myself to the enact con- I A shaft 19 fixed to the upper end of the lever 22. for use in limited spaces. The reamer' 2 1s, 1n tlns instance, a five-face suitable to the pipe to be reamedis placed in the bearing collar 11, and the bracket 10 replaced on the guide rods- The frame 1 is i to secure greater stability and t-o'insure betthe annular grooves in the shaft '19 and struction described herein as'in-yinvention may be embodied in devices of various designs.

I claim as my invention .1. Ina pipe reamer, in combination, a bracket, .a' reamer rotatably mounted in said bracket and adjustable longitudinally therein, guide rods having one end fixed in said bracket, a second bracket comprising a'bearing sleeve and arms extending outwardly from said sleeve a pipe'collar iremo'vablyfit-, ting in said sleeve, means fdrfixing said collar insaid sleeve the' arms of saidsecond bracket being shdably mounted on said guide rods and being removable therefrom to permit of removing said pipe collar from its sleevefand means for fix ng said'arms upon 1d guide rods.

2.111 a pipe reamer, in'combination a frame comprlsmg an upper bracket, a lower brafcket,-and guide rods fixed in the upper bracket, the lower bracket being slidabiy mounted on said guide rods mean's for fixing said lower bracket on said guide rods; a shaft rotatably mounted in the upper grooves in its periphery; a reamer fixed to the inner-end'of said shaft and lying within said frame; a set screw seated in said upper bracket, the inner end of said set screw being arranged to. lie in either of said annular rooves for ro'tatably securing said shaft in ongitudinally adjusted positions in said up perbracket; said lower; bracket havingan opening therethrou h; a'pi e collar fittlng EUGENE PEARSON, A. B. PRETTYMAN.

bracket and having a plurality "of annular 

